25608058997 has 2 divisors, whose sum is σ = 25608058998. Its totient is φ = 25608058996.

The previous prime is 25608058939. The next prime is 25608059023. The reversal of 25608058997 is 79985080652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24598471921 + 1009587076 = 156839^2 + 31774^2 .

It is a cyclic number.

It is not a de Polignac number, because 25608058997 - 2⁶ = 25608058933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25608058897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12804029498 + 12804029499.

It is an arithmetic number, because the mean of its divisors is an integer number (12804029499).

Almost surely, 2^25608058997 is an apocalyptic number.

It is an amenable number.

25608058997 is a deficient number, since it is larger than the sum of its proper divisors (1).

25608058997 is an equidigital number, since it uses as much as digits as its factorization.

25608058997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 25608058997 in words is "twenty-five billion, six hundred eight million, fifty-eight thousand, nine hundred ninety-seven".